Преобразуйте предложения в прошедшее время

1. Christy says he will tell you the truth.
2. Nobody knows what she means.
3. We think that he is joking.
4. John says he knows how I feel.
5. Harry doesn't know when his cousin will come.
6. I can't believe she has done it.
7. He thinks they are driving to the country.
8. She is sure we will be glad to meet her.
9. I don't know where she is.
10. I don't think they will be having breakfast so early.
11.We hope they have noticed us.
12.He doesn't suppose she speaks so much.
13. She says she will let me know when they come.
14.I think he came in a taxi.
15.They are sure we will be waiting for them in the bar.